Coke-oven door.



R. KEARNS.

COKE OVEN DOOR.

APPLICATION FILED JULY 27,1911.

Patented J an. 2, 1912.

INVENTOR. Klzwmi'.

ATTORNEKJ,

RICHARD KEARNS, OF MAMMOTH, PENNSYLVANIA.

COKE-OVEN DOOR.

Application filed July 27, 1911.

Specification of Letters Patent.

Patented Jan. 2, 1912.

Serial No. 640,866.

To all whom it may concern:

Be it known that I, RICHARD KEARNs, a citizen of the United States ofAmerica, residing at h/lammoth, in the county of VVestmoreland and Stateof Pennsylvania, have invented certain new and useful Improvements inCoke-Oven Doors, of which the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to coke oven doors, and the object of myinvention is to furnish a coke oven with a door that will facilitate thedrawing of coke from the oven and insure a proper ventilation within theoven, whereby coke can be expeditiously and economically produced.

My invention aims to provide a fire-proof door that can be easily raisedand lowered, and locked in a lowered position against lateral orvertical movement. To this end, I have devised a door made of metal andconstructed whereby it will slide against an oven door plate. Counterbalance weights are used to facilitate the raising of the door andsimple and effective means are resorted to for holding the door in alowered closed position.

These and such other objects as may hereinafter appear are attained by amechanical construction that will be hereinafter specifically describedand then claimed, and reference will now be had to the drawing, whereinFigure 1 is a front elevation of an oven door in accordance with thisinvention. Fig. 2 is a vertical sectional view of the same. Fig. 3 is aperspective view of a portion of an oven door face plate, and Fig. 4 isa perspective view of a portion of the door.

The reference numeral 1 denotes a portion of an oven having a doorway 2and the material bordering upon the outer edges of this doorway is cutaway to provide a seat 3 for a metallic face plate 4:. The upper end ofthe plate is arched, as at 5 to conform to the arch of the doorway 2,and the upper end of the plate, at the sides thereof, has forwardlyprojecting pins 6.

The reference numeral 7 denotes a door including a frame having siderails 8 and an arched top 9. The side rails 8 are longitudinal slotted,as at 10 to receive the guide pins, 6 and the front face of the frame,at the top of the sides thereof, has pivoted hooks 11 adapted to beswung under the protruding ends of the pins 6 to lock the door 1n alowered position and to prevent the accidental opening of the door.

7 The side rails 8 and the arched top 9 are connected by a web 12located intermediate the front and rear sides of the door, and the webhas vertical and transverse ribs 13 upon both sides thereof, with theouter edges of the ribs flush with the outer edges of the rails 8. Theribs upon the inner sides of the web serve functionally as supports forblocks or plates 14 of non-fusible material set in the inner side of thedoor, these blocks being preferably made of fireclay or other analogousmaterial. The uppermost blocks are provided with openings 15 registeringwith openings 16 in the web 12, and these openings allow a suflicientquantity of air to enter the oven to insure a proper combustion for theproduction of coke.

Suitably connected to the upper ends of the side rails 8 of the doorframe are cables 17 which extend upwardly over grooved sheaves orpulleys 18 mounted upon a shaft 19, journaled in bearings 20, carried bythe vertical frames 21 of the oven. The opposite ends of the cables areattached to counter balance weights 22.

To positively lock the door in a lowered position, the outer side of theoven, at each side of the doorway 2, is provided with brackets 23adapted to support a transverse bar 24. This bar is detachably mountedin the brackets and a wedge 25 is driven between the bar and the doorframe to lock the door against lateral displacement.

The side rails8 of the door frame extend below the lower edge of theweb- 12 a sufficient distance, whereby the web 12 can be elevatedsufficient to clear the arch of the doorway 2 without the pin 6 leavingthe slots 10, thereby permitting of the coke being easily drawn from theoven.

It is thought that the manner of opening and closing the oven door willbe apparent without further description, and while in the drawing thereis illustrated a preferred embodiment of the invention, it is to beunderstood that the structural elements thereof are susceptible to suchchanges as fall within the scope of the appended claims.

What I claim is 1. The combination with an oven having a doorwayprovided with a face plate and outwardly projecting pins, of a doorincluding a. frame having longitudinal slotted side rails for thereception of said pins, hooks carried by said door frame and adapted toing a frame having longitudinally slotted side rails for the receptionof said pins, hooks carried by said door frame and adapted to engagesaid pins to retain said door in a lowered position, a non-fusiblematerial carried by the inner side of said door frame, counter balancemeans connected to the door, and means including a transverse baradapted to lock said door in a closed lowered position. 1

3. In an oven door, a face plate provided with outwardly projectingpins, a door including a frame having longitudinally slotted rails forthe reception of said pins, ribs carried by said door frame non-fusiblematerial supported by said ribs upon the inner side of said door,counter balance weights for said door, and means including a bar forlocking said door in a closed lowered position.

In testimony whereof I affix my signature in the presence of twowitnesses.

RICHARD KEARNS. Witnesses:

MAX H. SRoLoVrrz,

CHRISTINA T. H001).

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Iatents, Washington, D. G.

